void
__glutDestroyWindow(GLUTwindow * window,
GLUTwindow * initialWindow)
{
GLUTwindow **prev, *cur, *parent, *siblings;
/* Recursively destroy any children. */
cur = window->children;
while (cur) {
siblings = cur->siblings;
__glutDestroyWindow(cur, initialWindow);
cur = siblings;
}
/* Remove from parent's children list (only necessary for
non-initial windows and subwindows!). */
parent = window->parent;
if (parent && parent == initialWindow->parent) {
prev = &parent->children;
cur = parent->children;
while (cur) {
if (cur == window) {
*prev = cur->siblings;
break;
}
prev = &(cur->siblings);
cur = cur->siblings;
}
}
/* Unbind if bound to this window. */
if (window == __glutCurrentWindow) {
glXMakeCurrent(__glutDisplay, None, NULL);
__glutCurrentWindow = NULL;
}
/* Begin tearing down window itself. */
if (window->overlay) {
__glutFreeOverlayFunc(window->overlay);
}
XDestroyWindow(__glutDisplay, window->win);
glXDestroyContext(__glutDisplay, window->ctx);
if (window->colormap) {
/* Only color index windows have colormap data structure. */
__glutFreeColormap(window->colormap);
}
/* NULLing the __glutWindowList helps detect is a window
instance has been destroyed, given a window number. */
__glutWindowList[window->num] = NULL;
/* Cleanup data structures that might contain window. */
cleanWindowWorkList(window);
cleanStaleWindowList(window);
/* Remove window from the "get window cache" if it is there. */
if (__glutWindowCache == window)
__glutWindowCache = NULL;
if (window->visAlloced) {
/* Only free XVisualInfo* gotten from glXChooseVisual. */
XFree(window->vis);
}
free(window);
}
void
__glutDestroyWindow(GLUTwindow * window,
GLUTwindow * initialWindow)
{
GLUTwindow **prev, *cur, *parent, *siblings;
/* Recursively destroy any children. */
cur = window->children;
while (cur) {
siblings = cur->siblings;
__glutDestroyWindow(cur, initialWindow);
cur = siblings;
}
/* Remove from parent's children list (only necessary for
non-initial windows and subwindows!). */
parent = window->parent;
if (parent && parent == initialWindow->parent) {
prev = &parent->children;
cur = parent->children;
while (cur) {
if (cur == window) {
*prev = cur->siblings;
break;
}
prev = &(cur->siblings);
cur = cur->siblings;
}
}
/* Unbind if bound to this window. */
if (window == __glutCurrentWindow) {
UNMAKE_CURRENT();
__glutCurrentWindow = NULL;
}
/* Invalidate glutExtensionSupported string cache if needed. */
__glutInvalidateExtensionStringCacheIfNeeded(window->ctx);
/* Begin tearing down window itself. */
if (window->overlay) {
__glutInvalidateExtensionStringCacheIfNeeded(window->overlay->ctx);
__glutFreeOverlayFunc(window->overlay);
}
XDestroyWindow(__glutDisplay, window->win);
glXDestroyContext(__glutDisplay, window->ctx);
if (window->colormap) {
/* Only color index windows have colormap data structure. */
__glutFreeColormap(window->colormap);
}
/* NULLing the __glutWindowList helps detect is a window
instance has been destroyed, given a window number. */
__glutWindowList[window->num] = NULL;
/* Cleanup data structures that might contain window. */
cleanWindowWorkList(window);
#if !defined(_WIN32)
cleanStaleWindowList(window);
#endif
/* Remove window from the "get window cache" if it is there. */
if (__glutWindowCache == window) {
__glutWindowCache = NULL;
}
if (window->visAlloced) {
/* Only free XVisualInfo* gotten from glXChooseVisual. */
XFree(window->vis);
}
if (window == __glutGameModeWindow) {
/* Destroying the game mode window should implicitly
have GLUT leave game mode. */
__glutCloseDownGameMode();
}
free(window);
}